JP7304410B2 - Devices, systems and methods for biopsy caps and housings - Google Patents

Description

The present invention relates to the field of medical devices. More particularly, the present invention is for use in endoscopes such as biopsy caps and biopsy cap housings with improved stability and stress distribution for rigid attachment to endoscope biopsy ports. Regarding medical equipment.

A wide variety of medical devices have been developed for medical applications. These devices include guidewires, guide tubes, catheters, endoscopes, endoscopic devices, and the like. Such devices are manufactured by any of a variety of different manufacturing methods and used according to any of a variety of methods.

Endoscopic biopsy cap housings and biopsy caps, both individually and cumulatively, contribute to component failure, unnecessarily complicated or additional procedural steps, and/or prolonged procedural time. There are various challenges to be faced.

A variety of beneficial medical outcomes may be achieved with biocaps and biocap housings according to embodiments of the present invention.

WO2009/143129

In an embodiment, a housing attachment for a biopsy port of an endoscope includes a first central split half having a first portion forming a first half of an upper chamber. The second portion forms the first half of the lower chamber. A first locking portion extends from the inner surface of the first central split half and is configured to engage the biopsy port. A second central split half includes a first portion forming a second half of the upper chamber. A second portion forms a second half of the lower chamber. A second locking portion extends from the inner surface of the second central split half, the second locking portion configured to engage the biopsy port. The mating surfaces of the first and second central split halves are configured to interlock.

In various embodiments described herein and elsewhere, the upper chamber is configured to receive a biopsy cap and the lower chamber is configured to receive a biopsy port. The first central split-half and the second central split-half each include radial ridges configured to engage corresponding recesses formed in the outer wall of the biopsy cap. The base portion is positioned about the perimeter of the biopsy port and positioned within the biopsy cap. A first locking hook is attached to the proximal end of the first center split half, a second locking hook is attached to the proximal end of the second center split half, and the first and second The locking hooks are substantially adjacent to each other when the first and second central split halves are interlocked. The first locking portion and the second locking portion are each angled radially inwardly and toward the upper chamber. The at least one stabilizing member extends from an inner surface of the first central split-half or the second central split-half and, when the first locking portion or the second locking portion is radially deformed, the second It is configured to impinge on one lock or a second lock. At least one stabilizing member includes a vertical surface substantially perpendicular to the radial curvature of the first locking portion or the second locking portion . The at least one stabilizing member is positioned such that the first locking portion or the second locking portion is radially deformable up to about 15 degrees to about 25 degrees. The mating surface of the first central split-half includes one or more protrusions and the mating surface of the second central split-half includes one or more receiving elements, the protrusions corresponding receiving elements. accepted within.

In embodiments, a biopsy cap assembly includes a first central split housing half including a first portion forming a first half of an upper chamber. The second portion forms the first half of the lower chamber. A second central split housing half includes a first portion forming a second half of the upper chamber. A second portion forms a second half of the lower chamber. The mating surfaces of the first and second central housing halves are configured to interlock to form upper and lower chambers. A biopsy cap is placed in the upper chamber.

In various embodiments described herein, the outer wall of the biopsy cap includes a recess formed therein, and the first and second median split halves each have a biopsy cap. It includes radial ridges configured to engage corresponding recesses formed in the outer wall of the cap. The base portion is positioned about the perimeter of the biopsy port and positioned within the biopsy cap. The housing includes a lip extending into the proximal end of the upper chamber and the biopsy cap includes a wedge extending outwardly from the top surface of the cap, the lip engaging the top surface of the wedge. Configured. The housing includes wedges formed within the inner surfaces of the first and second portions of the first and second central housing halves, the biopsy cap extending outwardly from the outer wall of the biopsy cap top. A wedge portion is included, and the wedge portion of the housing is configured to engage the wedge portion of the biopsy cap.

SUMMARY In one embodiment, a housing attachment for an endoscopic biopsy port comprises a body including an upper chamber configured to receive a biopsy cap. The lower chamber is adjacent to the upper chamber and configured to engage the biopsy port. The skirt region is configured to receive a portion of an endoscope. The skirt region includes an internal gripping member along an inner surface of the skirt region configured to frictionally fit a portion of the endoscope. The upper chamber includes radial ridges configured to engage corresponding recesses formed in the outer wall of the biopsy cap. The grip area is the outer peripheral surface of the body in the upper chamber, the grip area including an external grip member configured to be grasped by a user. At least two slots extend through the body along the upper chamber and the skirt region, the at least two slots configured to allow the body to flex when the grip region is compressed.

The present invention provides designs, materials, methods of manufacture, and alternative uses for medical devices. An embodiment of an endoscopic attachment is disclosed. The attachment includes a housing, one or more angled locking portions extending from an interior surface of the housing, the angled locking portions being designed to engage a biopsy port of an endoscope, and extending from the interior surface of the housing. One or more stabilizing members, a locking device coupled to the housing, and one or more or all of the biopsy caps disposed within the housing.

In various embodiments described herein, the one or more angled locking portions comprise a first angled locking portion disposed on a first side of the inner surface of the housing and a second angled locking portion on the inner surface of the housing. and a second angled locking portion disposed on the side. The one or more angled locking portions may include a first angled locking portion , and the first angled locking portion may include a bent portion. The one or more angled locking portions may include a first angled locking portion , the first angled locking portion being generally V-shaped. The one or more angled locking portions may include a first angled locking portion , the first angled locking portion being substantially rigid. The one or more angled locking portions may include a first angled locking portion , the first angled locking portion being resiliently deflectable. The one or more stabilizing members include a first stabilizing member positioned on a first side of the inner surface of the housing and a second stabilizing member positioned on a second side of the inner surface of the housing. It's okay. The one or more stabilizing members may include a first stabilizing member, the first stabilizing member extending radially inwardly from the inner surface of the housing. The housing may include a skirt region. The locking device may include one or more guidewire locks. Biopsy caps may include various sealing members, such as elastic seals.

In one embodiment, an attachment for an endoscope is disclosed. The attachment includes a housing designed to engage a biopsy port of an endoscope, a skirt region formed along a first end region of the housing, and a skirt region along a second end region of the housing. an angled locking portion extending from the interior surface of the housing ; a stabilizing member extending from the interior surface of the housing and positioned adjacent the angled locking portion; comprising one or more or all of the elements.

In various embodiments, the housing may further comprise a second angled locking portion extending from the interior surface of the housing and positioned opposite the angled locking portion . The angled locking portion may include a curved portion. The angled locking portion may be generally V-shaped. The angled locking member may be substantially rigid. The angled lock may be resiliently deflectable. A second stabilizing member may extend from the interior surface of the housing and be positioned opposite the stabilizing member. The stabilizing member may extend radially inwardly from the inner surface of the housing.

In one embodiment, an attachment for an endoscope is disclosed. The attachment includes a housing designed to engage a biopsy port of an endoscope, an asymmetric skirt region formed along a first end region of the housing, and a second end region of the housing. a guidewire locking region formed along a pair of angled locking portions extending from the interior surface of the housing; and a pair of stabilizing members extending from the interior surface of the housing and positioned adjacent the pair of angled locking portions . , a biopsy cap disposed within the housing, the biopsy cap including a resilient sealing member.

In one aspect, the invention relates to a biopsy cap housing comprising a first central split-half and a second central split-half. The first central split half includes a first portion forming the first half of the upper chamber and a second portion forming the first half of the lower chamber. A first pivot member is integrally formed with a first portion of the first central split half. A first slit extends through sidewalls of the first and second portions of the first central split half in alignment with the first pivot member. The second central split half includes a first portion forming the second half of the upper chamber and a second portion forming the second half of the lower chamber. A second pivot member is integrally formed with the first portion of the second central split half. A second slit extends through sidewalls of the first and second portions of the second central split half in alignment with the second pivot member. The mating surfaces of the first and second central split halves are configured to interlock to form upper and lower chambers.

In the described embodiment and further embodiments within the scope of the present invention, the protruding surface of the first pivot member extends into the upper chamber and the protruding surface of the second pivot member faces the first pivot member. into the upper chamber. The upper chamber is configured to receive a biopsy cap. The lower chamber is configured to receive an endoscopic biopsy port. The first and second pivot members include thicknesses that are greater than the wall thicknesses of the first and second central dividing halves. A force applied to the first portions of the first and second central split halves can move the second portions of the first and second central split halves away from each other. A force applied to the second portions of the first and second central split halves can move the first portions of the first and second central split halves away from each other. The protruding surfaces of the first and second pivot members are configured to engage corresponding recesses formed in the outer wall of a biopsy cap positioned within the upper chamber. A first locking hook is attached to the proximal end of the first central split half and a second locking hook is attached to the proximal end of the second central split half. The first and second locking hooks are substantially adjacent to each other when the first and second central split halves are interlocked. The inner surfaces of the first portions of the first and second central split halves are configured to engage the outer wall of a biopsy cap disposed within the upper chamber or corresponding surface elements formed within the outer wall. with surface elements. A surface element of the housing includes a lip extending into the proximal end of the upper chamber. The biopsy cap surface element includes a wedge extending inwardly from the top surface of the biopsy cap. The lip portion is configured to engage the upper surface of the wedge portion of the biopsy cap. The surface elements of the housing include wedges formed within the inner surfaces of the first and second portions of the first and second central split halves. The biopsy cap surface element includes a wedge extending outwardly from the outer wall of the biopsy cap top. The wedge of the housing is configured to engage the wedge of the biopsy cap. The mating surface of the first central split-half includes one or more protrusions and the mating surface of the second central split-half includes one or more receiving elements. The projections are configured to be received within corresponding receiving elements. The one or more projections can include one or more pins and the one or more receiving elements can include one or more pin holes. One or more pins and corresponding one or more pin holes are located at the proximal ends of the first portions of the first and second central split halves. One or more pins and corresponding one or more pin holes are located at the proximal ends of the second portions of the first and second central split halves. The one or more projections can include one or more pegs and the one or more receiving elements can include one or more sockets. One or more pegs and corresponding one or more sockets are disposed at the proximal ends of the second portions of the first and second central split halves. The one or more projections can include one or more snap locks and the one or more receiving elements can include one or more snap lock receivers. One or more snap locks and corresponding one or more snap lock receivers are disposed at the proximal ends of the first portions of the first and second central split halves. One or more snap locks and corresponding one or more snap lock receivers are disposed at the proximal ends of the second portions of the first and second central split halves. The one or more snap locks include angled surfaces configured to positively engage corresponding angled surfaces of the one or more snap lock receivers. The inner surfaces of the second portions of the first and second central split halves are configured to extend into the lower chamber and releasably engage an outer surface of an endoscopic biopsy port disposed within the lower chamber. includes one or more locks that are The inner surfaces of the second portions of the first and second central split halves extend 1 into the lower chamber on opposite sides of the first and second slits and between one or more locking portions. Contains one or more platform parts. The ends of the one or more locking portions and the surface of the one or more platform portions are positioned at a constant distance within the lower chamber when no force is applied to the first portions of the first and second central split halves. They are spaced apart. The ends of the one or more locking portions and the surface of the one or more platform portions contact when a force is applied to the first portions of the first and second central split halves. The force applied to the first portions of the first and second central split halves is an inward compressive force that separates the second portions of the first and second central split halves from each other. Contact between the one or more locking portions and the surface of the one or more platform portions may prevent failure of the at least one locking portion due to overstretching.

In one aspect, the invention relates to a biopsy cap that includes one or more surface elements formed on or within the biopsy cap. The one or more surface elements are frictionally and/or compressively with corresponding surface elements formed on or within the inner surface of the first portion of the first and second central half halves of the biopsy cap housing. configured to engage the The biopsy cap has a first surface element attached to or integrally formed with the proximal end of the biopsy cap and second and third surface elements attached to or integrally formed with the outer wall of the biopsy cap. include. One or more surface elements are integrally formed within the outer wall of the biopsy cap and are spaced approximately 90 degrees from the second and third surface elements relative to the outer peripheral surface of the biopsy cap. 2 recesses. The biopsy cap may be formed of various compressible materials (eg, silicone, rubber, etc.) or include various compressible materials (eg, silicone, rubber, etc.) formed into one unitary structure. The surface element may include a substantially continuous lip portion. The surface element may comprise a substantially continuous wedge. The surface element may include recesses.

In one aspect, the invention relates to a biopsy cap assembly that includes a first central split housing half and a second central split housing half. The first central split half includes a first portion forming the first half of the upper chamber and a second portion forming the first half of the lower chamber. A first pivot member is integrally formed with a first portion of the first central split half. The second central split half includes a first portion forming the second half of the upper chamber and a second portion forming the second half of the lower chamber. A second pivot member is integrally formed with the first portion of the second central split half. The mating surfaces of the first and second central housing halves are configured to interlock to form upper and lower chambers. A biopsy cap is placed in the upper chamber.

In the described embodiment and other embodiments within the scope of the present invention, the outer wall of the biopsy cap includes a recess formed therein. The protruding surface of the first pivot member extends into the upper chamber and the raised surface of the second pivot member extends into the upper chamber generally opposite the first pivot member. The protruding surface may frictionally engage the recess of the biopsy cap. The first and second pivot members include a thickness greater than the wall thickness of the first and second central housing halves. The housing can include a lip extending into the proximal end of the upper chamber and the biopsy cap includes a wedge extending outwardly from the top surface of the cap. The lip portion is configured to engage the upper surface of the wedge portion. The housing includes wedges formed within the inner surfaces of the first and second portions of the first and second central housing halves. The biopsy cap includes a wedge extending outwardly from the outer wall of the biopsy cap top. The wedge of the housing is configured to engage the wedge of the biopsy cap.

The above summary of specific embodiments is not intended to describe each disclosed embodiment or every implementation of the present invention. The figures and detailed description that follow more particularly exemplify these embodiments.

The invention can be more fully understood upon consideration of the following detailed description in conjunction with the accompanying drawings.

1 is a plan view of a portion of an endoscope including a biopsy port to the working channel of the endoscope; FIG. 1 is a plan view of a biopsy cap housing coupled to an endoscope in accordance with one embodiment of the present invention; FIG. 1 is a side view of a portion of a biopsy cap housing coupled to an endoscope in accordance with one embodiment of the present invention; FIG. 1 is a perspective view of a portion of a biopsy cap housing in accordance with one embodiment of the present invention; FIG. FIG. 3 is a perspective view showing the center split halves of a biopsy cap housing according to one embodiment of the present invention; FIG. 3 is a perspective view showing the center split halves of a biopsy cap housing according to one embodiment of the present invention; FIG. 3 is a perspective view showing the center split halves of a biopsy cap housing according to one embodiment of the present invention; 1 is a perspective view of a biopsy cap housing according to one embodiment of the present invention; FIG. 1 is a perspective view of a biopsy cap housing according to one embodiment of the present invention; FIG. 1 is a perspective view of a biopsy cap housing according to one embodiment of the present invention; FIG. 1 is a perspective view of a biopsy cap housing according to one embodiment of the present invention; FIG. FIG. 3 illustrates a biopsy cap housing coupled to an endoscope in accordance with one embodiment of the present invention; FIG. 3 illustrates a biopsy cap housing coupled to an endoscope in accordance with one embodiment of the present invention; 1 is a perspective view of a biopsy cap housing according to one embodiment of the present invention; FIG. FIG. 10 illustrates a biopsy cap housing coupled to an endoscope; FIG. 10 illustrates a biopsy cap housing coupled to an endoscope; 1 is a perspective view of a biopsy cap according to one embodiment of the present invention; FIG. 1 is a side view of a portion of a biopsy cap housing coupled to an endoscope in accordance with one embodiment of the present invention; FIG. 1 is a perspective view of a biopsy cap positioned within a biopsy cap housing in accordance with one embodiment of the present invention; FIG. 1 is a perspective view of a biopsy cap positioned within a biopsy cap housing in accordance with one embodiment of the present invention; FIG.

The invention is not limited to the specific embodiments described herein. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting beyond the scope of the appended claims. Unless defined otherwise, all technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

For the defined terms below, the following definitions shall apply unless a different definition is provided in the claims or elsewhere in this specification.
All numerical values are assumed herein to be modified by the term "about," whether or not explicitly stated. The term "about" refers to a range of numbers that one of ordinary skill in the art would consider equivalent to the recited value (eg, having the same function or result). The term "about" often includes multiple numbers rounded to the nearest significant figure.

The recitation of numerical ranges by endpoints includes all numbers within that range (eg 1 to 5 includes 1, 1.5, 2, 2.75, 3, 3.80, 4, and 5). included).
As used in this specification and the appended claims, the singular forms "a,""an," and "the" denote explicitly different content. Plural referents are included unless indicated. As used in this specification and the appended claims, the term "or" means "and/or" unless the content clearly dictates otherwise. generally used in the sense of including

Embodiments of the present disclosure are useful in various applications through the biopsy cap and port of an endoscope, laparoscope, or visualization system such as the SpyGlas® Direct Visualization System (Boston Scientific Corporation, Marlborough, Mass.). Although described with particular reference to biopsy caps and biopsy cap housings configured to allow flexible delivery and replacement of medical devices, such designs are useful for a variety of medical devices including sealable accesses. and suitable for and/or usable for medical applications.

References in this specification to "one embodiment," "some embodiments," "other embodiments," etc. may indicate that the described embodiment is one or more of the particular elements, structures and/or characteristics. Note that we indicate that we can include However, such listing does not necessarily mean that all embodiments will include particular elements, structures and/or characteristics. Further, where specific features, structures, and/or characteristics are described in the context of one embodiment, such features, structures, and/or characteristics are not explicitly disclaimed unless explicitly disclaimed. may be used in connection with other embodiments, whether or not described in .

The following detailed description should be read with reference to the drawings, in which like elements in the drawings are numbered the same. The drawings, which are not necessarily to scale, depict exemplary embodiments and are not intended to limit the scope of the invention.

Some biopsy cap housings allow axial and rotational movement of the housing and/or cap during device exchange. Additionally, exchanges of medical devices with larger diameters (e.g., catheters, stent introducers, etc.) through the biopsy cap are divided into two halves split at the center of the biopsy cap housing (central split halves). tend to exert a radially outward force that partially or completely separates or dissociates the . Applying adhesive to the center split halves can minimize such separation, but can increase assembly time and cost. Locking or unlocking the guidewire to hooks located on one side of the biopsy cap housing applies a radially outward force to one of the center halves, thus moving the center halves in opposite directions. may be partially or completely separated/separated from each other. Excessive bending due to a lateral force applied to one or both of the central split halves may cause the lock that secures the biopsy cap housing to the endoscope port, for example during disengagement of the biopsy cap housing from the biopsy port. Concentration of stress can lead to failure of one or more locks. Component failure or separation of the center split halves due to these forces can compromise the stability between the biopsy cap housing and the endoscopic biopsy port. Moreover, the cumulative effect of these separating forces can shorten the useful life of the biopsy cap housing.

In various embodiments, the features and advantages of providing sealable access to, for example, a working channel of an endoscope can be realized with a biopsy cap and biopsy cap housing combination. Such a sealable access to a working channel is disclosed in U.S. patent application Ser. '960, filed even date and having Attorney Docket No. No. 8150.0553, entitled "Housing," filed on even date and entitled "Apparatus, System, and Method for Providing Sealable Access to a Working Channel." No. 8150.0656, filed on the same date, U.S. Patent Application No. 8150.0610, filed on the same date and entitled "Inner Seal for Biopsy Caps," and on the same date. U.S. patent application having Attorney Docket No. 8150.0555, filed in , and entitled "Apparatus, System, And Method For Providing Sealable Access To A Working Channel." , the disclosures of which are each incorporated by reference in its entirety and for all purposes.

In endoscopic procedures, medical instruments such as guide wires, catheters, and endoscopic instruments are inserted through the working channel of the endoscope. A port (eg, a "biopsy port") along the endoscope provides access to the working channel. During use, it may be desirable to couple the biopsy cap to the biopsy port. A biopsy cap includes one or more seals or sealing members. The seal is designed to seal against the biopsy port and/or against instruments extending through the biopsy cap and into the working channel. During a procedure, it may be desirable to fix the position of a medical device (eg, guidewire) relative to the endoscope. A locking mechanism is secured to the endoscope and/or biopsy cap to secure the medical device. Disclosed herein is an endoscope attachment or biopsy cap assembly that includes a number of components including a biopsy cap housing, a biopsy cap, a locking mechanism, and other components.

FIG. 1 shows a portion of biopsy port 10 of exemplary endoscope 12 . Biopsy port 10 includes a stem or neck region 14 and an end or flanged region 16 . Biopsy port 10 serves as access to a channel (eg, working channel) of endoscope 12 . Generally, biopsy port 10 is designed to receive a biopsy cap.

2-3 show an example of an endoscope attachment 18 that includes a housing 20 coupled to biopsy port 10. FIG. Generally, endoscope attachment 18 is designed to be coupled (e.g., removably coupled, attached, secured) to a biopsy port of an endoscope (e.g., biopsy port 10 of endoscope 12). . In addition, endoscope attachment 18 includes a number of elements capable of forming a seal with a biopsy cap at biopsy port 10 so that medical instruments (e.g., guidewires, catheters, endoscopic devices) may pass through its interior. to allow penetration into the working channel of endoscope 12 and to ensure that the medical device is secured to endoscope 12 or the like to receive biopsy cap 300 (e.g., FIG. 13). configured to

Endoscope attachment 18 includes housing 20 having skirt region 22 , grip region 24 , and locking region 26 . In some examples, housing 20 is a single piece. Alternatively, the housing 20 is formed of two or more pieces, eg, a first housing portion 20a and a second housing portion 20b secured together. In FIG. 3 only the first housing part 20a is shown, for example with the second housing part 20b removed. Forming housing 20 from separate pieces may allow housing 20 to be molded relatively easily (eg, compared to a single piece) or to be molded into complex shapes. When formed from separate pieces, the housing portions 20a, 20b are together pinned (e.g., snap lock including a pin on one portion and a hole or opening for receiving the pin on the other portion); It is secured by any suitable method such as thermal bonding, adhesive bonding or the like. In various embodiments, housing 20 is substantially rigid. The pinning allows secure attachment of the portions 20a, 20b and enhances the ability of the two portions 20a, 20b of the housing to "pivot" relative to each other. When so done, the housing 20 can be opened or unfolded (e.g., the endoscope attachment 18 , such as the skirt region 22 ) to attach or detach the endoscope attachment 18 from the biopsy port 10 . adjacent to the bottom of the ). A slot or opening 28 is formed along a portion of housing 20 . The slots may increase flexibility and/or pivotability of housing 20 to make it easier to secure endoscope attachment 18 to biopsy port 10 .

Skirt region 22 is designed to follow the shape and/or contour of endoscope 12 . More specifically, skirt region 22 is shaped to conform to the shape of the handle region of endoscope 12 adjacent biopsy port 10 . This enhances the stability of the endoscope attachment 18 and reliably holds the position of the endoscope attachment 18 relative to the endoscope 12 . In at least some examples, the shape of skirt region 22 is described as being asymmetric. For example, the skirt region 22 may have a first portion 30 (eg, which may or may not correspond to the first housing portion 20a) and a second portion 32 (eg, which may or may not correspond to the second housing portion 20b). (sometimes).

Gripping region 24 includes one or more gripping members 34 . Grasping member 34 may take the form of a knob or pinch grip that allows a user to grasp endoscope attachment 18 . In some cases, grasping members 34 are pinched together to spread endoscopic attachment 18 (e.g., adjacent skirt region 22) to attach or detach endoscopic attachment 18 from biopsy port 10. can do. Slot 28 helps facilitate flexing/bending of endoscope attachment 18 when gripping member 34 is pinched.

Locking region 26 includes one or more locking devices 36 . The locking device 36 may have different shapes. In some cases, locking device 36 may take the form of a hook designed to engage and hold a medical device (eg, guidewire, catheter, endoscopic device, etc.). In doing so, the medical device is held in place relative to the endoscope attachment 18 (and/or the endoscope 12).

As shown in FIGS. 3 and 4, the housing 20 of the endoscope attachment 18 includes one or more angled locking portions 38. As shown in FIG. Generally, angled locking portion 38 takes the form of a projection extending radially inwardly from the inner surface of housing 20 and toward the upper chamber. The angled locking portion 38 includes a bend, curve or bend 40 . In at least some examples, the angled locking portion 38 may be described as being "V-shaped." However, other shapes are also contemplated. Angled lock 38 is resiliently flexible so that it can bend and deflect in order to fit and secure flanged region 16 of biopsy port 10. . The number of angled locks 38 and/or the placement of the angled locks 38 may vary. For example, housing 20 may include 2, 3, 4, 5, 6, 7, 8, or more angled locking portions 38 . In some examples, each central split half 20a, 20b may include a pair of angled locking portions 38 positioned opposite or opposite each other. When the housing portions 20a, 20b are brought together, the angled locking portions 38 of each of the opposing housing portions 20a, 20b are positioned adjacent each other. Alternative configurations are also contemplated.

Housing 20 of endoscope attachment 18 includes one or more stabilizing members 42 . Generally, stabilizing members 42 take the form of projections extending radially inwardly from the inner surface of housing 20 . Stabilizing member 42 assists in stabilizing position (eg, laterally and/or axially) on biopsy port 10 . The number and/or placement of stabilizing members 42 may vary. For example, the housing may include 2, 3, 4, 5, 6, 7, 8, or more stabilizing members 42 . In some examples, each housing portion 20a, 20b includes a pair of stabilizing members 42 positioned adjacent to each other. When the housing portions 20a, 20b are brought together, the pair of stabilizing members 42 of each opposing housing portion 20a, 20b are positioned opposite each other. Alternative configurations are also contemplated.

See FIGS. 5A and 5B. A biopsy cap housing embodiment of the present invention includes first and second central split halves 110a, 110b (e.g., first and second housing portions or parts) that engage or interlock with each other. , a first portion 112a, 112b (e.g., upper chamber, first chamber, top chamber) configured to securely receive a biopsy cap 300 (e.g., FIG. 13); A first and second portion configured to form a second portion 122a, 122b (e.g., lower chamber, second chamber, bottom chamber, etc.) configured to positively and releasably engage 610. center split halves 110a, 110b.

Referring to FIG. 5A, in one embodiment, a first central split half 110a (eg, first side, locking side, etc.) of a biopsy cap housing (eg, housing 20 of FIGS. 2-4) comprises an upper chamber. and a first portion 112a (e.g., upper, upper) forming a first half (e.g., a substantially semi-cylindrical half) of the lower chamber (e.g., a substantially semi-cylindrical half) and a second portion 122a (eg, lower, lower portion) that forms a . A first locking hook 123a (eg, a guidewire locking hook) and guide 130 are attached to or integrally formed with the proximal end of first portion 112a. A first pivot member 114a (e.g., first pivot button, first pivot element, etc.) is integrally formed at approximately the midpoint of the first portion 112a and defines a first slit 126a (e.g., opening, slot, etc.). extend through the sidewalls of the first and second portions 112a, 122a in general alignment with the first pivot member 114a (eg, on the same side, directly below, etc.). A first pivot member 114a is pivoted in the first half of the upper chamber, for example, to engage a corresponding recess 312a formed in the outer wall of biological cap 300 (see FIG. 13 herein). Including radially projecting surfaces or raised surfaces (eg, enlarged portions, protrusions) extending therein.

In one embodiment, the inner surface of the first portion 112a of the first central split half 110a has a surface configured to press and/or frictionally engage corresponding surface elements of the biopsy cap. contains elements. In some embodiments, the surface element is integrally formed on the inner wall of the first central split half 110a into the first half of the upper chamber at or near the proximal end of the first portion 112a. It includes an extending lip portion 117a (eg, step element, etc.). In various embodiments, the surface elements are within the inner wall of the first portion 112a distal of the lip 117a and on either side of the first half of the first portion 112a (e.g., about 180 degrees apart). disposed), comprising a pair of wedges 116a (eg, recesses, recesses).

In one embodiment, one or more locks 1 24a (e.g., V-locks, etc.) are at or near the proximal end of the second portion 122a and on either side of the first half of the second portion 122a. (eg, spaced about 180 degrees apart) are attached to or integrally formed with the inner wall of the first central split half 110a. Locking portion 124a is configured to releasably engage biopsy port 600 (eg, neck 610) disposed within second portion 122a (eg, FIG. 6A herein). For example, the end of locking portion 124a, when radially deformed in the absence of bioport 600 (discussed below with respect to FIGS. 6A-6C), faces approximately 90 degrees of neck portion 610 of bioport 600. A pair of substantially vertical surfaces 125a, 127a configured to engage (eg, contact, fit within) (eg, the bottom or underside of the lip). Additionally, one or more platform portions (e.g., stops, etc.) are attached to or integrally formed with the inner walls of the first central split half 110a on either side of the first slit 126a and between the locking portions 124a. be done.

In one embodiment, one or more protrusions are attached to or integrally formed with mating surfaces 111a of the first and second portions 112a, 122a of the first central split half 110a. In various embodiments, the protrusions include one or more pins 118a (eg, posts, rods, etc.) having generally spherical or cylindrical outer dimensions. In various additional embodiments, the projections include one or more pegs 119a (eg, blocks, etc.) having generally square or rectangular outer dimensions. In various additional embodiments, the projections include one or more snap locks 120a (eg, arms, etc.) with generally curved or hooked ends.

By way of non-limiting example, in one embodiment, two pins 118a extend from mating surface 111a at or near the proximal end of first portion 112a, and two pins 118a extend from mating surface 118a adjacent locking portion 124a. extending from surface 111a. Two snap locks 120a extend from mating surface 111a at or near the proximal end of first portion 112a and proximal to pin 118a, and two snap locks extend at or near the distal end of second portion 122a. It extends from mating surface 111a in the vicinity. Two pegs 119a extend from mating surface 111a adjacent lock portion 124a, distal to pin 118a and proximal to peg 119a.

Referring to FIG. 5B, in one embodiment, a second central split half 110b (eg, second side, groove side, etc.) of a biopsy cap housing (eg, housing 20 of FIGS. 2-4) comprises an upper chamber. and a first (e.g., upper) portion 110b forming a second half (e.g., a substantially semi-cylindrical half) of the lower chamber (e.g., a substantially semi-cylindrical half) forming a second half (e.g., a substantially semi-cylindrical half) of the lower chamber. and a second (eg, lower) portion 122b. A second locking hook 123b (eg, a guidewire locking hook) is attached to or integrally formed with the proximal end of the first portion 112b. A second pivot member 114b (e.g., second pivot button, second pivot feature) is integrally formed at approximately the midpoint of the first portion 112b, and a second slit 126b (e.g., opening, slot, etc.) is , extend through the sidewalls of the first and second portions 112b, 122b and generally aligned (eg, on the same side, directly below) with the second pivot member 114b. The second pivot member 114b is positioned in the upper chamber of the first pivot member 114b, for example, to engage a corresponding recess 312a (e.g., groove, dimple) formed in the outer wall of the biological cap 300 (e.g., FIG. 13 herein). with a protruding or raised surface (eg, an enlarged portion) extending into the half of the .

In one embodiment, the inner surface of the first portion 112b of the second central split half 110b includes surface elements configured to press and/or frictionally engage corresponding surface elements of the biopsy cap. include. In one embodiment, the surface element is integrally formed on the inner wall of the second central dividing half 110b and extends into the first half of the upper chamber at or near the proximal end of the first portion 112b. It includes a lip portion 117b (eg, a step element, etc.). In one embodiment, the surface elements are within the inner wall of the second portion 112b distal to the lip 117b and formed on either side of the first half of the first portion 112b (eg, about 180 degrees A pair of wedge portions 116b (eg, recesses, dimples) are provided that are spaced apart.

In one embodiment, one or more locking portions 124b (eg, V-locks, etc.) are at or near the proximal end of the second portion 122b and on either side of the second half of the lower chamber. (e.g., spaced about 180 degrees apart), attached or integrally formed. Locking portion 124b is configured to releasably engage neck 610 of biopsy port 600 disposed within the lower chamber (see FIG. 6A). For example, the end of locking portion 124b, when radially deformed in the absence of biopsy port 600, is aligned with approximately a 90 degree surface of neck portion 610 of biopsy port 600 (e.g., the bottom or underside of the lip). ), or alternatively, a pair of substantially vertical surfaces 125a, 127a configured to engage stabilizing member 128b. Additionally, one or more platform portions 128b (e.g., stops, etc.) are attached to the inner wall of the second central split half 110b on either side of the second slit 126b and between the locking portions 124a , or integrally formed.

In one embodiment, one or more receiving elements (e.g., receiving features, etc.) are integrally formed within the mating surfaces 111b of the first and second portions 112b, 122b of the second central split half 110b; and configured to receive/engage one or more corresponding protrusions of the first central split half 110a, such as by a friction fit or an interference fit, e.g. , 110b are interlocked in a snap-fit configuration to form the assembled biological cap housing. In various embodiments, the receiving element is one or more pins having a generally spherical or cylindrical inner dimension configured to frictionally receive a corresponding generally spherical or cylindrical outer dimension of the pin 118a. Includes holes 118b (eg, posts, rods, etc.). In various additional embodiments, the receiving element has one or more substantially square or rectangular inner dimensions configured to frictionally receive corresponding substantially square or rectangular outer dimensions of the peg 119a. Includes socket 119b. In various additional embodiments, the receiving element has a generally curved or hooked inner dimension configured to receive a corresponding generally curved or hooked end of the snap lock 120a. It includes the above snap lock receiving portion 120b. 5C, in one embodiment, one or more snap locks 120a of the present invention frictionally and/or compressively contact corresponding angled surfaces 121b of one or more snap lock receivers 120b. / includes a recessed angled surface 121a configured to engage. In various embodiments, the interface between these opposing angled surfaces may impart a "positive lock" interaction with greater locking force/interaction than between corresponding non-angled surfaces.

As a non-limiting example, in one embodiment, two pin holes 118b are formed in the mating surface 111b at or near the proximal end of the first portion 112b, the two pin holes 118b being located in the locking portion 1 24b. is formed in mating surface 111b adjacent to . Two snap lock receivers 120b are formed in mating surface 111b at or near the proximal end of first portion 112b and proximal to pin hole 118b; is formed in mating surface 111b at or near the distal end of portion 122b. Two sockets 119b are formed in mating surface 111b adjacent lock portion 124b, distal to pin hole 118b and proximal to snap lock receiver 120b.

In one embodiment, the biopsy cap housing of the present disclosure includes one or more protrusions (eg, pin 118a, peg 119, snap lock 120a) each having a corresponding one or more receiving elements, eg, pin hole 118b, socket. 119b, snap lock receiver 120b) to compress or press the first and second central half halves 110a, 110b in a snap-fit configuration. It is assembled by aligning mating surfaces 111a and 111b of 110a and 110b. In various embodiments, the first and second locking hooks 123a, 123b are substantially adjacent to each other when the biopsy cap housing is assembled and configured to securely engage the proximal portion of the guidewire. do. Further, the surface elements of each of the first portions 112a, 112b of the first and second central split halves 110a, 110b are substantially aligned to form a continuous surface element and the raw material disposed within the upper chamber. Prevents or restricts axial and/or rotational movement of biopsy cap 300 (eg, FIG. 13 herein) and prevents fluid flow (eg, leakage) along the outer surface of biopsy cap 300 . For example, the lips 117a, 117b of the first and second portions 112a, 112b align to form a substantially continuous lip extending into the upper chamber at or near the proximal end of the biopsy cap housing and wedging. Portions 116a and 116b align to form a continuous wedge on either side of the upper chamber.

6A, in one embodiment, locking portion 1 24a (e.g., V-lock) is, for example, a second portion of the biopsy cap housing (e.g., second portions 122a, 122b of FIGS. 5A, 5B). When the are compressed inwardly toward each other, they releasably engage the neck 610 of the biopsy port 600 located within the lower chamber. Lock 1 24a may be lock 38 of FIGS. 3 and 4, lock 1 24a and 124b of FIGS. 5A and 5B, or a lock of another embodiment of the housing. 6B, in the resting state and without biopsy port 600, locking portion 124a extends from platform portion surface 129a (e.g., an enlarged or thickened surface) of each substantially vertical stabilizing member 128a. placed at regular intervals. Referring to FIG. 6C, without biopsy port 600, when the locks are forced radially together (e.g., first portions 112a, 112b of the biopsy cap housing are compressed inwardly toward each other). ), the ends of locking portion 124a contact surfaces 129a of respective stabilizing members 128a to prevent excessive extension of locking portion 124a to the point of failure. For example, surfaces 129a prevent locking portions 124a from extending beyond their respective platform portions 128a to a point where one or both of locking portions 24a could break or break (e.g., surfaces 129a are substantially perpendicular to the radial curvature of the first locking portion or the second locking portion ). As a non-limiting example, platform portion 128a is constructed or arranged such that locking portion 124a can bend or bend at multiple angles (eg, about 15 degrees and no more than about 25 degrees).

As will be appreciated by those skilled in the art, the entire biopsy cap housing may be subject to extreme stresses, such as radial forces due to device exchange or guidewire locking, and high stress at the point of rotation due to attachment/detachment to/from the biopsy port. A substantially equal force distribution across the neck 610 of the endoscopic biopsy port 600 reduces the cumulative effects of wear due to incremental and continuous actuation between the interlocking protrusions and receiving elements. Partial or complete detachment of the lower housing may be prevented.

As shown in FIG. 7, in one embodiment, the skirt region 22 includes one or more gripping members or gripping members disposed along an inner surface (e.g., the inner surface of the housing 20 at or along the skirt region 22). It has a rib portion 46 . Ribs 46 help secure endoscope attachment 18 to endoscope 12 by allowing endoscope attachment 18 to “grip” and/or frictionally engage endoscope 12 . , form or define a surface along the inside of the endoscope attachment 18 .

8 and 9 show an embodiment of endoscope attachment 18 with housing 20 attached to biopsy port 10 . For example, endoscope attachment 18 is positioned adjacent biopsy port 10 . In doing so, the angled locking portion 38 is adjacent to the flange region 16 of the biopsy port, as shown in FIG. A user applies a force (eg, a pinching force) along a grip region (eg, grip region 24 in FIG. 2) of attachment 18 to open or spread housing 20 (eg, adjacent portions of skirt region 22). to bend or pivot outward. The user also applies a downward force on endoscope attachment 18 to engage endoscope attachment with biopsy port 10 and secure endoscope attachment 18 to biopsy port 10 . In doing so, the angled locking portion 38 is resiliently biased such that the angled locking portion 38 seats under the flange area, as shown in FIG. When secured, stabilizing member 42 engages neck region 14 and/or flange region 16 of biopsy port 10 . Securing endoscope attachment 18 to biopsy port 10 engages opening 48 or base portion 45 of seal member with biopsy port 10 such that seal member 48 engages channel 50 (e.g., channel 50 ) of endoscope 12 . A channel 50) accessible through the biopsy port 10 can be pushed or sealed. When endoscope attachment 18 is secured to biopsy port 10, endoscope attachment 18 may provide tactile feedback such as a "snap" or "click" sound and/or sensation. The user simply pinches the grip region 24 to bend/pivot/extend the housing 20 (as well as extend/open the angled locking portion 38 ) and pull the endoscope attachment 18 out of the biopsy port 10. With this, the endoscope attachment 18 can be removed.

FIG. 10 shows an embodiment of an endoscopic attachment 918 that is similar in form and function to other endoscopic attachments disclosed herein. Endoscope attachment 918 includes housing 920 . Housing 920 is generally more flexible than housing 20 of FIGS. 2 or 5A-5C. Slots 928 are formed in the housing to further enhance flexibility of the housing. One or more locks 952 extend from housing 920 . In some examples, locking portion 952 takes the form of a generally rigid protrusion extending radially inward from housing 920 . In at least some examples, locking portion 952 forms a substantially circular (eg, and/or a break circle) lock designed to extend around the perimeter of a biopsy port (eg, biopsy port 10, etc.). configured to

11 and 12 show endoscope attachment 918 of FIG. 10 attached to biopsy port 10. FIG. For example, endoscope attachment 918 is positioned adjacent biopsy port 10 . In doing so, the locking portion 952 is adjacent to the flange region 16 of the biopsy port, as shown in FIG. A user may apply a downward force to endoscope attachment 918 to secure endoscope attachment 918 to biopsy port 10 . When doing so, the housing 920 is resiliently biased so that the locking portion 952 seats under the flange area, as shown in FIG. By securing endoscope attachment 918 to biopsy port 10, a sealing member is provided such that base portion 945 pushes or seals channel 50 of endoscope 12 (channel 50 accessible through biopsy port). or engaging the opening 948 of the base portion 945 with the biopsy port 10; When endoscope attachment 918 is secured to biopsy port 10, endoscope attachment 918 may generate tactile feedback such as a "snap" or "click" sound.

Referring to FIG. 13, in one embodiment, the biopsy cap 300 of the present invention is formed on or within the biopsy cap 300 and includes the inner surfaces of the first portions of the first and second medial split halves ( For example, surface elements configured to frictionally load engage and/or press against corresponding surface elements formed on or within the first and second central split halves 110a, 110b (FIGS. 5A, 5B). include. In one embodiment, the biopsy cap 300 includes a first surface element 314a attached to or integral with the proximal end (e.g., top surface) of the biopsy cap 300 and a first surface element 314a attached to or integral with the outer wall of the biopsy cap 300. There are formed second and third surface elements 314b, 314c. Additionally or alternatively, the surface elements are integrally formed within the outer wall of biopsy cap 300 and are substantially 90 degrees to the outer peripheral surface of biopsy cap 300 from second and third surface elements 314b, 314c. It includes first and second spaced apart recessed portions 312a, 312b. In various embodiments, the biopsy cap 300 of the present invention is made of various compressible materials (e.g., silicone resin) formed as one unitary structure, e.g., using co-extrusion or co-extrusion techniques known in the art. , rubber, etc.).

Referring to FIG. 14, an embodiment of biopsy cap 44 is positioned within housing 20 of endoscope attachment 18 (eg, FIGS. 2, 5A-5C). Note that biopsy cap 44 is not shown in FIGS. 2-5C for clarity. The shape of biopsy cap 44 may vary. In at least some examples, biopsy cap 44 includes one or more seals or sealing members (not shown in FIG. 14). The seal is designed to prevent fluid from leaking out of biopsy port 10 by sealing against biopsy port 10 . In addition, the seal is designed to seal against medical instruments (eg, guidewires, catheters, endoscopic devices) passing through biopsy cap 44 of endoscope attachment 18 . In at least some examples, biopsy cap 44 is positioned adjacent to and/or seated on stabilizing member 42 .

In various embodiments, various advantages may be realized with the biopsy cap housing 20 and/or biopsy cap 300 of the present invention. For example, referring to FIG. 15A, in one embodiment, a substantially continuous lip portion extending at or near the proximal end of the biological cap housing 100 (e.g., the lip portions of each of the halves 110a, 110b of the housing 100). 117 a , 117 b ) are frictionally engaged and/or pressed against the substantially planar upper surface of first surface element 314 a of biopsy cap 300 . Additionally or alternatively, continuous wedges (e.g., formed by respective wedges 116a, 116b) on either side of the first portion are connected to the respective second and third biopsy caps 300. top and/or angled sides of the surface elements 314b, 314c and the base portion 45 in frictional engagement and/or pressure contact. 15B, additionally or alternatively, the protruding surfaces of the first and second pivot members 114a, 114b are aligned with corresponding recessed portions 312a, 312b formed in the outer wall of the biopsy cap 300. Referring to FIG. Frictionally engaged and/or crimped. These features may similarly be implemented with the housing 20 of the endoscopic attachment embodiment of FIGS. 2-4 and with the base portion 45, 945 of FIGS.

In various embodiments, the cumulative effect of these frictional and/or compressive forces along various opposing surfaces and sides of biopsy cap 300 is the first portion (upper chamber) of biopsy cap housing 100 . ) and/or restrict or prevent axial and/or rotational movement of the biopsy cap 300 within the biopsy cap 300 ) and/or prevent fluid flow on the outer peripheral surface of the biopsy cap 300 during device exchange via the lumen 310 of the biopsy cap 300, for example. prevent flow (e.g. leakage);

Additionally or alternatively to the advantages described above, various additional advantages may be realized by the interlocking projections and receiving elements of the respective first and second central split halves 110a, 110b. For example, interlocking pins 118a/pin holes 118b and snap locks 120a/snap lock receivers 120b provide structural support, minimize movement, and allow the first and second central split halves to A radially outward force applied to the biopsy cap housing across and/or between 110a, 110b can be evenly distributed. For example, the radially outward force applied to biopsy cap housing 100 during the exchange of a large (e.g., 16 French) medical device through flexible biopsy cap 300 would not be concentrated in the upper chamber. , but substantially evenly distributed along the length of biocap housing 100 (eg, between/along mating surfaces 111a/111b). Further, a radially outward force imparted unevenly to one side of the biopsy cap housing 100 by, for example, a guide wire secured to the first and/or second locking hooks 123a, 123b may be applied to the biopsy cap. It is redistributed substantially evenly along the length of housing 100 . Additionally or alternatively, the greater surface area of interlocking pegs 119a/sockets 119b at or near locking portions 124a , 124b (e.g., compared to pins 118a/pin holes 18b) provides additional structural Locks 1 24a, 124b provide support to minimize movement and reversibly engage, for example, neck 410 of endoscopic biopsy port 400 at or near the bottom of biopsy cap housing 100. can distribute the force evenly adjacent to the .

Additionally or alternatively to any of the above advantages, various additional advantages may be realized by the first and second pivot members 114a, 114b of the first and second central split halves 110a, 110b. For example, in addition to providing protruding surfaces for frictionally and/or compressively engaging corresponding recessed portions 312a, 312b formed in the outer wall of biopsy cap 300, the first and second pivots The members 114a, 114b have an increased thickness (eg, compared to the remaining wall thickness of the first portions 112a, 112b of the first and second central split halves 110a, 110b) to provide an upper chamber and A reinforced or reinforced region of the biopsy cap housing 100 is provided at the pivot point (eg, high stress area) between the lower chamber. For example, when the user compresses the second portions 122a, 122b of the biopsy cap housing 100 inwardly, the first portions 112a, 112b of the first and second central split halves 110a, 110b move toward each other. Moving apart, the second portions 122a, 122b of the first and second central split halves 110a, 110b move toward each other to endoscopically displace lower chamber locking portions 124a, 124b. Engage neck 610 of biopsy port 600 (FIG. 6A). Similarly, when the user compresses the first portions 112a, 112b of the biopsy cap housing 100 inwardly, the first portions 112a, 112b of the first and second central split halves 110a, 110b Moving toward each other, the second portions 122a, 122b of the first and second central split halves 110a, 110b move away from each other to lock from the neck 610 of the endoscopic biopsy port 600. Part 1 24a, 124b is removed. In various embodiments, the shape, position, and/or thickness of the first and second pivot members 114a, 114b can be adjusted without increasing the total amount of material in the first and second pivot members 114a, 114b. Enhanced strength and/or flexibility may be provided compared to corresponding pivot points of biopsy cap housing 100 . These features can be similarly implemented with the housing 20 of the endoscopic attachment embodiment of FIGS. 2-4.

Additionally or alternatively to any of the above advantages, the ability of the platform portion of the stabilizing member 128a to prevent overextension of the locking portions 124a, 124b may be repeated with the neck 610 of the endoscopic biopsy port 600. The cumulative effects of wear due to gradual, continuous over-extension of locking portions 124a, 124b before or after engagement and disengagement can be further prevented or minimized.

In various embodiments, the first and second central split halves 110a, 110b are biopsied while maintaining sufficient flexibility to be opened and closed using force applied by a user's fingers. Integrally formed from a variety of high quality polymers (such as acetyl) that can provide the necessary degree of yield stress and force modulus to withstand the various radial and loading forces imparted to the cap housing. co-molding, co-extrusion, injection molding, etc.). These features can be similarly implemented with the housing 20 of the endoscopic attachment embodiment of FIGS. 2-4.

The invention is directed to embodiments in which one or more projections are arranged only on the mating surface of the first center split half and corresponding one or more receiving elements are arranged only on the mating surface of the second center split. Not limited. In various embodiments, the one or more projections are positioned on the mating surface of the second central split half and the corresponding one or more receiving elements are positioned on the mating surface of the first central split half. may be In various additional embodiments, the mating surfaces of the first central split half are received and/or received within corresponding receiving elements and protrusions on the mating surface of the second central split half. may include both projections and receiving elements configured to

Materials that can be used for various components of endoscopic attachment 18 (and/or other endoscopic attachments disclosed herein) can include those that generally correspond to medical devices. For example, endoscope attachment 18 may be made of metal, metal alloys, polymers (some examples of which are disclosed below), metal-polymer composites, ceramics, combinations thereof, etc., or another suitable material. can be Examples of suitable polymers include acrylonitrile butadiene styrene, acrylonitrile butadiene styrene and polycarbonate, polytetrafluoroethylene (PTFE), ethylene tetrafluoroethylene (ETFE), fluorinated ethylene propylene (FEP), polyoxymethylene (POM, such as DuPont Polyether Block Esters (e.g. Polyurethane 85A), Polypropylene (PP), Polyvinyl Chloride (PVC), Polyether Esters (e.g. available from DSM Engineering Plastics) ARNITEL®, ether or ester based copolymers (e.g. butylene/poly(alkylene ether) phthalates and/or other polyester elastomers such as HYTREL® available from DuPont), polyamides (e.g. from Bayer) DURETHAN® available or CRISTAMID® available from Elf Atochem), elastomeric polyamides, block polyamides/ethers, polyether block amides (PEBA, e.g. available under the trade name PEBAX®). , ethylene vinyl acetate copolymer (EVA), silicone, polyethylene (PE), Marlex high density polyethylene, Marlex low density polyethylene, linear low density polyethylene (such as REXELL®), polyester, poly butylene terephthalate (PBT), polyethylene terephthalate (PET), polytrimethylene terephthalate, polyethylene naphthalate (PEN), polyetheretherketone (PEEK), polyimide (PI), polyetherimide (PEI), polyphenylene sulfide (PPS), polyphenylene oxide (PPO), polyparaphenylene terephthalamide (eg KEVLAR®), polysulfone, nylon, nylon-6, nylon-12 (such as GRILAMID® available from EMS American Grillon Company), perfluoro(propyl vinyl ether) (PFA), ethylene vinyl alcohol, polyolefins, polystyrene, epoxies, polyvinylidene chloride (PVdC), poly(styrene-b-isobutylene-b-styrene) (for example SIBS and/or SIBS50A), polycarbonates, Ionomers, biocompatible polymers, other suitable materials, or mixtures, combinations, copolymers thereof, polymer/metal composites, and the like may be included.

It should be understood that this disclosure is, in many respects, only illustrative. Changes may be made in details, particularly in matters of shape, size, and arrangement of steps without exceeding the scope of the invention. This includes, to the extent appropriate, the use of any element used in one example in another embodiment. All of the devices and/or methods disclosed and claimed herein can be made and executed without undue experimentation in light of the specification. Although the apparatus and methods of the present invention have been described in terms of preferred embodiments, it is possible that any apparatus and/or method and process or steps disclosed herein could be modified without departing from the concept, spirit and scope of the present invention. A person skilled in the art will understand that the order of can be changed. All such similar substitutes and modifications apparent to those skilled in the art are within the spirit, scope and concept of the invention as defined by the appended claims.

Claims (15)

a first center split half;
An endoscopic biopsy port housing attachment comprising a second central split half, comprising:
The first central split half has a first portion defining a first half of an upper chamber configured to receive a biopsy cap and for engaging a biopsy port of an endoscope. and a second portion defining a first half of the configured lower chamber, wherein the second portion of the first middle dividing half is the first portion of the first middle dividing half. one or more biopsy ports configured to extend radially inwardly from an inner surface at or near the end of the second portion of the first central split half adjacent to the Including the lock part,
A second central split half comprises a first portion defining a second half of said upper chamber and a second portion defining a second half of said lower chamber; the second portion of the central split half is diametrically from the inner surface at or near the end of the second portion of the second central split half adjacent the first portion of the second central split half one or more locks configured to extend inwardly to engage the biopsy port;
An endoscopic biopsy port housing attachment wherein mating surfaces of the first and second central split halves are configured to engage one another. The upper chamber is configured to receive the biopsy cap therein, and a base member disposed within the biopsy cap is configured to be disposed about the biopsy port. 2. The lower chamber of claim 1, wherein the lower chamber is configured to receive the biopsy port therein and the base member is configured to engage the biopsy port within the upper chamber. housing attachment. each of the first central split-half and the second central split-half comprising a radial ridge configured to engage a corresponding recess formed in an outer wall of the biopsy cap; A housing attachment according to claim 1. 2. The housing of claim 1, wherein the one or more locking portions of the first center split half are spaced from the one or more locking portions of the second center split half. attachment. further comprising a first locking hook attached to a proximal end of said first center split half and a second locking hook attached to a proximal end of said second center split half; 2. The housing attachment of claim 1, wherein said first and second locking hooks abut each other when said first and second central split halves are engaged. 2. The housing of claim 1, wherein at least one of said one or more locking portions of said first and second central split halves are each angled radially inwardly and towards an upper chamber. attachment. Further comprising at least one stabilizing member extending from an inner surface of the first central split-half or the second central split-half, the at least one stabilizing member extending from the first and second central split-halves. 2. The housing attachment of claim 1, wherein at least one of said one or more locking portions of a split impinges upon said locking portion when radially deformed. 8. The method of claim 7, wherein said at least one stabilizing member comprises a vertical surface substantially perpendicular to the radial curvature of at least one of said one or more locking portions of said first and second central split halves. Housing attachment as described. The at least one stabilizing member is positioned such that at least one of the one or more locking portions of the first and second central split halves is radially deformable by a maximum of 15 degrees to 25 degrees. 8. A housing attachment according to claim 7. The mating surface of the first central split-half includes one or more protrusions and the mating surface of the second central split-half includes one or more receiving elements, the protrusions corresponding receiving elements. 2. A housing attachment according to claim 1, configured to be received within an element. a first center split housing half;
a second central split housing half;
a biopsy cap;
a base member disposed within the biopsy cap, comprising:
said first central split housing half comprising a first portion defining a first half of an upper chamber and a second portion defining a first half of a lower chamber;
said second central split housing half comprising a first portion defining a second half of the upper chamber and a second portion defining a second half of the lower chamber;
mating surfaces of the first and second central housing halves are configured to mate to form the upper chamber and the lower chamber;
The base member located at the bottom of the biopsy cap is positioned within the upper chamber, the lower chamber is configured to receive a biopsy port of an endoscope, the base member includes the biopsy cap. A biopsy cap assembly configured to engage a portion of the biopsy port within the upper chamber. The outer wall of the biopsy cap includes a recess formed therein, and the first central split housing half and the second central housing half are each formed within the outer wall of the biopsy cap. 12. The biopsy cap assembly of claim 11, including corresponding radial ridges configured to engage corresponding recesses. 12. The biopsy cap assembly of claim 11, wherein a portion of the base member is configured to be positioned around the perimeter of the biopsy port. The first and second central split housing halves each include a lip portion extending into the proximal end of the upper chamber, and the biopsy cap has a wedge portion extending outwardly from a top surface of the biopsy cap. 12. The biopsy cap assembly of claim 11, wherein the lip portion is configured to engage an upper surface of the wedge portion. The first and second central housing half halves each include a recess formed within the inner surface of the first portion of each first and second central housing half, and the biopsy cap includes a biopsy cap. a surface element extending outwardly from an outer wall of an upper portion of the biopsy cap, the recess in each first and second central housing half being configured to engage the surface element of the biopsy cap; 12. The biopsy cap assembly of claim 11.

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